It is administered as part of the Jepara Regency, Central Java.

Kemujan is the second largest of the Karinmunjawas, and is less forested than the larger Karimun Island.

[1] The island is serviced by Dewadaru Airport.

[2] The economy of the island is based around fishing and tourism.

[3] Kemujan island also contains rare, naturally-exposed iron ore deposits.